Serializing a class

This is a discussion on Serializing a class within the C++ Programming forums, part of the General Programming Boards category; I'm very frustrated at this right now. I can't seem to figure it out. I created my own class called ...

  1. #1
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    Red face Serializing a class

    I'm very frustrated at this right now. I can't seem to figure it out.

    I created my own class called "CMais" and it used a generic class and the base class of the CObjectArray. I added 10 member variables and am trying to now serialize the class. When I go to add the member function, I type the function as "Serialize(CArchive &ar)" and the access as public and the virtual box is checked. When I click the "OK" button, it comes up with an error that "Serialize(CArchive &ar) is not a valid function in C++". What does this mean and how can I fix it?

    Thanks for all your help.

    I have attached a copy of my Mais.cpp file for you to look at for a deeper involved look.
    Attached Files Attached Files
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  2. #2
    It's full of stars adrianxw's Avatar
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    To "serialize" a class, you would normally overload the stream insertion/extraction operators, (<< and >>), search google, or this board.
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  3. #3
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    serialization

    to implement serialization your object must be derive from CObject

    [CODE]

    //in h file



    class CMyclass : CObject
    {
    DECLARE_SERIAL(CMyclass)
    ...
    void Serialize( CArchive& ar);
    int m_1;
    int m_2;
    }

    /////////////////////////////////////////////
    //in cpp file


    IMPLEMENT_SERIAL( CMyclass, CObject, 0)

    void CMyclass::Serialize( CArchive& ar )
    {
    if( ar.IsStoring( ar ) )
    ar << m_1 << m_2 ;
    }


    /////in the foreing class

    class SomeForeignClass{


    CMyclass a;
    CFile myArFile;

    }


    void SomeForeignClass::OnLoad()
    {



    if( myArFile.Open(strFileName, CFile::modeRead))
    {
    CArchive ar(&myArFile, CArchive::load);
    a.Serialize( ar )l
    myArFile.Close();
    }

    }

    void SomeForeignClass::OnSave()
    {
    if( myArFile.Open( strFileName, CFile::modeCreate | CFile::modeWrite))
    {
    CArchive ar(&myArFile, CArchive::store)
    a.Serialize( ar );
    ar.Close();
    myArFile.Close();
    }

    }

    [CODE]

    this is somewhat of a sample similar to the one found in "Introduction to MFC programming with Visual C++" by Richard M. Jones....
    zMan

  4. #4
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    I have a similar question.. what if your class is Cwnd which is derived from CObject?

    because i'm doing what you just showed on top.. but with Cwnd.. and well it ain't working..

  5. #5
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    nevermind, i got it.. apprently you have to have a default constructor..

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